75V 4.5μm to 43.8μm Square Stacked Piezo Actuator Discrete with Flat End Plates

Description

The drive voltage range of this stacked piezo actuator is 0 to 75V. And its free travel displacement is from 4.5μm to 43.8μm. The max thrust force is from 360N to 1000N. This discrete square PZT stack uses multilayer 75V piezoelectric chips. There are two wires connecting the electrodes. Red is the positive electrode, and black is the negative electrode. Wire length is 75mm.

This 75 volt piezoelectric stack driver is with flat end plates. Of course, there are also the 75v PZT actuator with hemispheric end. Special custom options is available. Welcome to contact us. It has wide applications, such as open-loop experimental setups, precision machine and device control, robotic flexible grasping, aerospace equipment drive, ultrasonic transducer drive, etc.

Technical specifications of stacked piezo actuator:

Note:

① All data were measured at room temperature (25℃);
② Displacement values ​​measured under different loads may fluctuate;

Features of our piezoelectric stack actuator:

① Displacement hysteresis: ±15%;
② Our stacked piezo actuator has low loss: <2.3%;
③ Curie temperature: 230 °C;
④ Operating temperature range: -25 ~ 130 °C;
⑤ Low temperature drift rate. Therefore, it can ensure output consistency in complex environments;
⑥ Sub-nanometer accuracy: displacement resolution reaches the sub-nanometer level. Moreover, repeatability positioning accuracy is less than 0.1%;
⑦ Millisecond response: actuator electromechanical response time is as short as microseconds;
⑧ Cycle lifetime >10^8 cycle times. Besides, our piezo electric stack driver supports 24/7 continuous operation.

Precautions for using a 75V multilayer piezo stack:

① The red wire of stacked piezo actuator is the positive terminal. The black wire is the negative terminal for grounding. Do not reverse them. Otherwise, mechanical failure will occur.

② Sometimes, it is necessary to re-connect the wires to the actuator electrodes. The soldering temperature used must not exceed 370℃ (700°F). Besides, the contact time for each solder joint should not exceed 2 seconds. At the same time, solder the leads to the center of the electrodes.

③ It is recommended to apply an external load to the 75V piezoelectric stack. We should apply the load to the center of the stack mounting area. Or distribute the load as evenly as possible on the mounting surface. Ensure that the two surfaces in contact with PZT stack are perfectly flat and smooth. This 75 volt piezo stack driver can only withstand axial forces. Shear or torsional forces may cause mechanical failure.

④ The storage temperature of multilayer piezo actuator should be below 80℃. And humidity should be below 50%.

⑤ Do not immerse the piezo ceramic stack in organic solvents. Also, keep it away from flammable gases or liquids.

FAQ

Q1: What’s your MOQ of PZT actuator?

A1: The MOQ is only 1pc. So you can buy the sample for test first.

Q2: How long is your delivery time for the stack?

A2: It is about 7 to 10 days.

Q3: Do you accept the customization?

A3: Yes. We support the custom requirements.

Q4: Is the stacked piezo actuator with leads or not?

A4: There are 75mm length wires.